23159552 has 36 divisors (see below), whose sum is σ = 49791840. Its totient is φ = 10687488.

The previous prime is 23159531. The next prime is 23159611. The reversal of 23159552 is 25595132.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152 + ... + 6807.

Almost surely, 2^23159552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23159552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24895920).

23159552 is an abundant number, since it is smaller than the sum of its proper divisors (26632288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23159552 is an equidigital number, since it uses as much as digits as its factorization.

23159552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6988 (or 6974 counting only the distinct ones).

The product of its digits is 13500, while the sum is 32.

The square root of 23159552 is about 4812.4372203697. The cubic root of 23159552 is about 285.0427841792.

The spelling of 23159552 in words is "twenty-three million, one hundred fifty-nine thousand, five hundred fifty-two".